Faculty Bibliography

The advent of value-based care as a component of the United States health care system is part of a broader paradigm shifting away from fee-for-service payment models in favor of alternative reimbursement incentives tied to quality and outcome metrics. Bundled care models, gainsharing agreements, and other cost containment measures, although promising, may induce unintended systemwide consequences for orthopedic trauma surgeons who often specialize in tending to costly multiply injured patients and marginalized populations. This article reviews facets of value-based care applicable to orthopedic trauma surgery with an emphasis on public health and ethical considerations for policymakers and orthopedic surgeons.

Obese patients with hip fractures are at increased risk of perioperative complications due to both their size and associated medical conditions. The purpose of this report is to describe a technique for intraoperative positioning of obese patients who sustain a hip fracture. A 62-year-old female with a history of morbid obesity (BMI 48.06kg/m²), type II diabetes mellitus, and hypertension presented with a right intertrochanteric fracture and was admitted for operative fixation on a fracture table. A standardized approach for systematic patient positioning and abdominal panniculus taping is described, which facilitates operative repair of the hip fracture using a cephalomedullary nail. This report describes the intraoperative positioning technique of a morbidly obese patient with an intertrochanteric hip fracture in order to highlight specific techniques used to deal with the physical aspects of obesity that can improve the surgical efficiency of the procedure. By positioning obese patients in a standardized way, intraoperative time and complications will be decreased, potentially mitigating some of the risks associated with this patient population.

OBJECTIVES/OBJECTIVE:To determine if matching by trauma risk score is non-inferior to matching by chronic comorbidities and/or a combination of demographic and patient characteristics in observational studies of acute trauma in a hip fracture model. DESIGN/METHODS:Retrospective cohort study SETTING: Level-1 Trauma Center PATIENTS: 1,590 hip fracture [AO/OTA 31A and 31B] patients age 55 and over treated between October 2014 and February 2020 at 4 hospitals within a single academic medical center. INTERVENTION/METHODS:Repeatedly matching randomized subsets of patients by (1) Score for Trauma Triage in Geriatric and Middle-Aged (STTGMA), (2) Charlson Comorbidity Index (CCI), or (3) a combination of sex, age, CCI and body mass index (BMI). MAIN OUTCOME MEASUREMENTS/METHODS:"Matching failures" where rate of significant differences in variables of matched cohorts exceeds the 5% expected by chance. RESULTS:STTGMA and combination matching resulted in no "matching failures". Matching by CCI alone resulted in "matching failures" of BMI, ASA class, STTGMA, major complications, sepsis, pneumonia, acute respiratory failure, and 90-day readmission. CONCLUSIONS:STTGMA matching in observational cohort studies is less likely to yield significant differences of demographics and outcomes than CCI matching. STTGMA matching is noninferior to matching a combination of demographic variables optimized for each treatment cohort. STTGMA matching is apt to reflect equipoise of health at admission and outcome likelihood in observational cohort studies of orthopedic trauma, while maintaining consistent weighting of demographic and injury characteristic variables that may expand the generalizability of these studies. LEVEL OF EVIDENCE/METHODS:Level III.

The dataset presented was collected via retrospective review from an orthopedic trauma database approved by the institutional review board at the author's institution from patients treated at any of the four hospitals serviced by the academic orthopedic surgery department. Femoral neck and intertrochanteric hip fracture patients from low energy mechanisms admitted between October 2014 and February 2020, were selected if they were age 55 or older and had recorded sex, body mass index (BMI), Charlson Comorbidity Index (CCI), American Society of Anaesthesiologists (ASA) physical status classification, Glasgow Coma Score, Abbreviated Injury Severity score for the chest, head and neck, and extremities, and ambulation status prior to injury. The resultant 1,590 subject dataset may be analysed via the supplied R statistical code to determine the frequency of equipoise in baseline and outcome variables from propensity matching via three matching schemes. The code implements three matching schemes including matching by (1) The Score for Trauma Triage in Geriatric and Middle-Aged (STTGMA) (2) CCI alone, or (3) a combination of sex, age, CCI and BMI. The code selects a subset of ten percent of hip fracture patients by a pseudorandom number generator (PRNG). The code matches the remaining patients 1:1 to the selected patients by propensity score generated by logistic regression of STTGMA, CCI, or a combination of sex, age, CCI and BMI using greedy nearest neighbor matching without replacement by the MatchIt package for R software. The code then compares matched cohorts by Chi-square, Fisher, or Mann-Whitney U test with significance level of 0.05 representing a 5% chance of significant differences due to random sampling of subjects. The supplied code repeats the random selection, matching and testing process 100,000 times for each matching method. The resultant code output is the frequency of significantly different demographic or outcome parameters among matched cohorts by matching method. This data and statistical code have reuse potential to explore alternative matching schemes. The supplied baseline variables should be robust enough to derive alternative risk scores for each patient which may be included as a matching variable for comparison. The authors also look forward to unexpected ways that this data may be used by readers.

In this study, we evaluated risk factors for gram-negative fracture-related infection in a mixed cohort of gram-positive and gram-negative fracture-related infections to guide perioperative antibiotic prophylaxis for surgical fixation of fractures. We performed a retrospective review of all patients with fracture who were treated at an urban academic level I trauma center between February 1, 2012, and June 30, 2017. Inclusion criteria were as follows: (1) open or closed fracture with internal fixation; (2) deep, acute to subacute (<6 weeks), culture-positive fracture-related infection; and (3) age 18 years or older. Infections were classified as gram positive, gram negative, or polymicrobial. Demographic, surgical, and postoperative characteristics were compared among groups. Of 3360 patients, 43 (1.3%) had a fracture-related infection (15 gram negative, 14 gram positive, and 14 polymicrobial). Risk factors for gram-negative infection included initial external fixation (P=.038), the need for soft tissue coverage of an open fracture site (P=.039), lower albumin level at the time of infection (P=.005), and hospitalization for longer than 10 days (P=.018). Perioperative gram-negative antibiotic prophylaxis for fracture fixation surgery should be considered for those who have been staged with external fixation, require soft tissue coverage, are at risk for malnutrition in the postoperative period, and have prolonged inpatient hospitalization. [Orthopedics. 20XX;XX(X):xx-xx.].

Introduction: The purpose of this study is to assess the effect of radial head/ neck injury in association with proximal ulna fractures. Methods: Between 2006 and 2020, 107 patients presented to our academic medical center for treatment of a proximal ulna fracture and were enrolled into an IRB-approved database. Radiographs, injury details, and surgical interventions were retrospectively reviewed. Patients were classified as having an isolated proximal ulna fracture (PU), a PU fracture with an associated radial head dislocation (M"“D), or a Monteggia fracture with an associated radial head fracture (M"“V). Clinical and functional outcomes were assessed at follow-up to determine what differences exist between fracture patterns. Statistics were generated using Chi-squared tests for categorical variables and one-way ANOVA tests for numerical variables. Results: While all patients ultimately healed, time to radiographic healing in the PU cohort was shorter at 3.57 ± 1.7 months when compared to the M"“V cohort (5.67 ± 3.8 months) (p < 0.05). At follow-up, patients in the M"“V cohort had poorer elbow pronation and supination when compared to the PU and M"“D cohorts (p < 0.05). Patients within the PU cohort had fewer complications than those in the M"“D and M"“V cohorts (p < 0.05). No differences were found between the three cohorts in regard to rates of reoperation, non-union, wound infection, and nerve compression (p > 0.05). Conclusion: The Monteggia fracture with a concomitant radial head/neck fracture is a more disabling injury pattern when compared to an isolated proximal ulna fracture and Monteggia fracture without an associated radial head/neck fracture.

Background/UNASSIGNED:Nearly 20% of Americans consider themselves disabled. A common cause of disability is unexpected orthopaedic trauma. The purpose of this current study, assessing common lower extremity trauma, is the following: to assess the prevalence of self-reported feelings of disability following these injuries, to determine if self-reported feelings of disability impact functional outcomes, and to understand patient characteristics associated with self-reported feelings of disability. Methods/UNASSIGNED:The functional statuses of patients with tibial plateau fractures and ankle fractures were prospectively assessed. Patient reported feelings of disability (acquired from validated functional outcome surveys), which were compared with overall patient-reported functional outcome and emotional status at each follow-up visit. Additionally, patient demographics were analyzed, to assess associations with feelings of disability. Results/UNASSIGNED: = 0.252). Self-reported feelings of disability declined at each follow-up visit, from 48.1% at short-term follow-up to 22.1% at long-term follow-up. Conclusion/UNASSIGNED:Self-reported feelings of disability, following lower extremity trauma, had strong positive correlations with worse outcomes. Orthopaedic trauma surgeons should be aware of the percentage of patients who feel disabled following lower extremity fractures, and know that this is associated with sub-optimal outcomes. Level of Evidence/UNASSIGNED:III.

Introduction/UNASSIGNED:The purpose of this study was to assess the hospital quality measures and outcomes of operative hip fracture patients before and after implementation of an anesthesiology department protocol assigning decision for a preoperative transthoracic echocardiogram (TTE) to the hospitalist co-managing physician. Materials and Methods/UNASSIGNED:Demographics, injury details, hospital quality measures, and outcomes were reviewed for a consecutive series of patients presenting to our institution with an operative hip fracture. In May of 2019, a new protocol assigning the responsibility to indicate a patient for preoperative TTE was mandated to the co-managing hospitalist at the institution. Patients were split into pre-protocol and post-protocol cohorts. Linear regression modeling and comparative analyses were conducted with a Bonferroni adjusted alpha as appropriate. Results/UNASSIGNED:Between September 2015 and June 2021, 1002 patients presented to our institution and were diagnosed with a hip fracture. Patients in the post-protocol cohort were less likely to undergo a preoperative echocardiogram, experienced a shorter time (days) to surgery, shorter length of stay, an increase in amount of home discharges, and lower complication risks for urinary tract infection and acute blood loss anemia as compared to those in the pre-protocol cohort. There were no differences seen in inpatient or 30-day mortality. Multivariable linear regression demonstrated a patient's comorbidity profile (Charlson Comorbidity Index (CCI)) and their date of presentation (pre- or post-protocol), were both associated with (P<0.01) a patients' time to surgery. Conclusion/UNASSIGNED:A standardized preoperative work flow protocol regarding which physician evaluates and determines which patients require a preoperative TTE allows for a streamlined perioperative course for hip fracture patients. This allows for a shortened time to surgery and length of stay with an increase in home discharges and was associated with a reduced risk of common index hospitalization complications including UTI and anemia.

BACKGROUND:The purpose of this study is to determine if treated psychological depression is associated with poorer functional outcomes in patients who sustain tibial plateau fractures. METHODS:Patients with a tibia plateau fracture were prospectively followed. Functional status was assessed using the Short Musculoskeletal Function Assessment (SMFA) at baseline (pre-injury), 3 months, 6 months, and 1 year post injury. Clinical outcomes were recorded at each follow up visit and radiographic outcomes were obtained from follow up radiographs. Records were reviewed to identify patients who were being treated for major depressive disorder (MDD). SMFA scores and clinical outcomes were compared between the depression and no depression cohorts. RESULTS:420 patients were treated for a tibial plateau fracture and the mean age was 50.83 ± 15.60 years. Forty-two (10%) patients with 42 fractures were being treated for MDD at the time of their fracture. Patients with MDD were older (p = 0.05) and were more likely female (p < 0.01). At baseline, the clinical depression cohort had worse Total SMFA scores compared to the non-depressed cohort (5.90 ± 14.41 vs. 2.69 ± 8.35, p < 0.01). There were no differences in total SMFA score or any SMFA subscores at 3, 6, and 12 months. The incidence of wound complications, reoperations, and radiographic outcomes also did not differ between the cohorts. CONCLUSION/CONCLUSIONS:Despite patients with MDD reporting higher SMFA (poorer) scores at baseline, MDD was not associated with worse injuries, diminished clinical or poorer functional outcomes following tibial plateau fractures.

OBJECTIVES/OBJECTIVE:To assess the outcomes of patients who underwent closed reduction and percutaneous pinning (CRPP) with cannulated screws for treatment of a displaced femoral neck fracture (DFNF) as they were deemed too high risk to undergo hemiarthroplasty (HA). DESIGN/METHODS:Prospective cohort study. SETTING/METHODS:One urban academic medical center. PATIENTS/PARTICIPANTS/METHODS:Sixteen patients treated with CRPP and 32 risk-level-matched patients treated with HA. INTERVENTION/METHODS:CRPP for patients with DFNFs who were deemed too ill to undergo HA. The concept being that CRPP would aid in pain control and facilitate mobilization and if failed, the patient could return electively after medical optimization for conversion to arthroplasty. MAIN OUTCOME MEASUREMENTS/METHODS:Complications, readmissions, mortality, inpatient cost, and functional status. RESULTS:The CRPP cohort had a greater incidence of exacerbations of chronic medical conditions or new onset of acute illness and an elevated mean American Society of Anesthesiologist score. There were no differences in discharge location, length of stay, major complication rate, ambulation before discharge, or 90-day readmission rate. Patients undergoing CRPP were less likely to experience minor complications including a significantly decreased incidence of acute blood loss anemia. Three patients (18.7%) in the CRPP cohort underwent conversion to HA or THA. There was no difference in inpatient, 30-day, or 1-year mortality. CONCLUSION/CONCLUSIONS:In the acutely ill patients with DFNFs, "damage control" fixation with CRPP can be safely performed in lieu of HA to stabilize the fracture in those unable to tolerate anesthesia or the sequelae of major surgery. Patients should be followed closely to evaluate the need for secondary surgery. LEVEL OF EVIDENCE/METHODS:Therapeutic Level III. See Instructions for Authors for a complete description of Levels of Evidence.